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lewingSep 9, 2025
What does error E594 mean on my Navien NHB-080?
- CChristina SolisSep 9, 2025
If your Navien Boiler displays error code E594, which indicates an abnormal EEPROM (PCB), the suggested solution is alarm.
What does error E594 mean on my Navien NHB-080?
If your Navien Boiler displays error code E594, which indicates an abnormal EEPROM (PCB), the suggested solution is alarm.
Why is my Navien NHB-080 space heating malfunctioning?
The space heating side might not be working because the temperature setting is too low. Also, when the unit is heating domestic hot water (DHW), the heating side will not function. Ensure the boiler is powered on and not in standby mode, and that the setting temperature is appropriately raised.
What to do if my Navien Boiler shows error E001?
If your Navien Boiler displays error code E001, which indicates a heat exchanger over temperature issue, try an auto reset, manual reset, or power on reset.
What does E046 error code mean on my Navien NHB-080 Boiler?
If your Navien Boiler displays error code E046, which indicates an abnormal operation with the heat exchanger overheating sensor, try an auto reset.
What does error E736 mean on my Navien Boiler?
If your Navien Boiler displays error code E736, which indicates an abnormal cascade communication, the suggested solution is alarm.
What does error code E016 mean on a Navien Boiler?
If your Navien Boiler displays error code E016, which indicates heat exchanger overheat, try a manual reset or a Power On reset.
What to do if my Navien NHB-080 Boiler is showing error E777?
If your Navien Boiler displays error code E777, which indicates an abnormal LWCO limit (external device), try an auto reset.
What should I do if my Navien NHB-080 displays error E517?
If your Navien Boiler displays error code E517, which indicates an abnormal DIP switch setting (PCB), try a manual reset or a power on reset.
What does error E060 mean on my Navien NHB-080?
If your Navien Boiler displays error code E060, which indicates abnormal operation of the dual venturi, the suggested solution is to check the alarm.
What does error E004 mean on my Navien NHB-080?
If your Navien Boiler displays error code E004, which indicates false flame detection, try an auto reset.
Defines key safety terms like DANGER, WARNING, and CAUTION.
Explains the meaning of hazard symbols used in the manual.
Lists essential safety measures regarding flammable materials and venting.
Details the NHB Series gas boiler models and their heating capacities.
Diagram showing the key components of the boiler.
Provides heating input, capacity, AFUE, and water pressure ratings.
Illustrates boiler dimensions and lists supply connection sizes.
Explains configuration of operation status and capacity via DIP switches.
Details the procedure for measuring inlet gas pressure.
Outlines the process for converting the boiler from Natural Gas to Propane.
Describes the boiler's front panel interface, including LCD display and buttons.
Explains how to view error codes and reset the boiler.
Guide on how to adjust the space heating water temperature.
Guide on how to adjust the domestic hot water temperature.
Instructions for accessing and viewing the error history log.
Accessing advanced parameter settings for qualified professionals.
Procedure for performing a factory reset on the boiler.
Lists common error codes and their corresponding conditions.
Details the function and troubleshooting checks for major boiler components.
Categorizes error codes by system and provides self-diagnostic actions.
Troubleshooting steps for overheating of heat exchanger.
Troubleshooting steps for ignition failure.
Troubleshooting steps for flame loss.
Troubleshooting steps for fan motor RPM errors.
Troubleshooting steps for air pressure errors.
Troubleshooting steps for heat exchanger output temp sensor errors.
Guides troubleshooting based on observed symptoms like noise or temp issues.
General safety precautions and steps before replacing parts.
Detailed instructions for replacing major components.
Steps for replacing the Printed Circuit Board (PCB).
Instructions for replacing the fuse.
Steps for replacing the combustion air fan.
Instructions for replacing the flame rod.
Steps for replacing the ignition transformer.
Instructions for replacing the Air Pressure Sensor.
Steps for replacing the main gas valve.
Instructions for replacing the water pressure sensor.
Diagram and part numbers for the boiler's case assembly.
Diagram and part numbers for the heat exchanger and waterway components.
Diagram and part numbers for the combustion assembly.
Recommendations for maintaining safe and efficient operation annually.
Template for recording inspection and maintenance tasks.
Overview of owner maintenance tasks by frequency.
Template for recording inspection results.
General| Model | NHB-080 |
|---|---|
| Fuel Type | Natural Gas or Propane |
| Heating Capacity | 80, 000 BTU/h |
| Max. Input (NG) | 80, 000 BTU/h |
| Max. Input (LP) | 80, 000 BTU/h |
| Min. Input (NG) | 16, 000 BTU/h |
| Min. Input (LP) | 16, 000 BTU/h |
| Output BTU/h | 80, 000 BTU/h |
| Gas Connection Size | 3/4" NPT |
| Voltage | 120V |
| Type | Condensing Boiler |
| Temperature Range (°F) | 80-180°F |
| Vent Size | 2"/3" |
| Efficiency | 95% AFUE |
